Gravitational field around spacelike and timelike current-carrying cosmic strings

Details Gravitational field around spacelike and timelike current-carrying cosmic strings Gravitational field around spacelike and timelike current-carrying cosmic strings

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvd..48.5546p&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 48, Issue 12, 15 December 1993, pp.5546-5561

Physics

24

Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

The metric around a current-carrying superconducting cosmic string of the Witten type is estimated for both timelike and spacelike currents by means of a matching at the string radius with the most general static and cylindrically symmetric vacuum solution of the Einstein-Maxwell equations. This solution depends on four parameters which are computed numerically in the weak field limit as functions of the string state parameter. Finally, the equations of motion for test and charged particles are derived and the bending of light rays is calculated to first order in the Newton constant.

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